EP1228819A3 - Method of manufacturing a cover for communication devices - Google Patents

Method of manufacturing a cover for communication devices Download PDF

Info

Publication number
EP1228819A3
EP1228819A3 EP02250139A EP02250139A EP1228819A3 EP 1228819 A3 EP1228819 A3 EP 1228819A3 EP 02250139 A EP02250139 A EP 02250139A EP 02250139 A EP02250139 A EP 02250139A EP 1228819 A3 EP1228819 A3 EP 1228819A3
Authority
EP
European Patent Office
Prior art keywords
cover
manufacturing
communication devices
impact
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02250139A
Other languages
German (de)
French (fr)
Other versions
EP1228819A2 (en
Inventor
Juha Sormunen
Eero Maki-Tulokas
Tomi Kanninen
Pekka Hakanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Oyj filed Critical Nokia Oyj
Publication of EP1228819A2 publication Critical patent/EP1228819A2/en
Publication of EP1228819A3 publication Critical patent/EP1228819A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/18—Making uncoated products by impact extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)
  • Telephone Set Structure (AREA)

Abstract

A housing or decorative cover for a mobile communication device is constructed by impact extrusion of metal. The impact extrusion die and punch are designed to provide attachment ridges and slots for ease of assembling the cover to the device. To provide a final shape and finish the impact extruded metal cover is drawn through a drawing stone.
EP02250139A 2001-02-01 2002-01-09 Method of manufacturing a cover for communication devices Withdrawn EP1228819A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US26583801P 2001-02-01 2001-02-01
US265838P 2001-02-01
US867916 2001-05-30
US09/867,916 US6655764B2 (en) 2001-02-01 2001-05-30 Method of manufacturing a cover for communication devices

Publications (2)

Publication Number Publication Date
EP1228819A2 EP1228819A2 (en) 2002-08-07
EP1228819A3 true EP1228819A3 (en) 2003-03-05

Family

ID=26951456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02250139A Withdrawn EP1228819A3 (en) 2001-02-01 2002-01-09 Method of manufacturing a cover for communication devices

Country Status (2)

Country Link
US (1) US6655764B2 (en)
EP (1) EP1228819A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4949190B2 (en) * 2007-10-18 2012-06-06 レノボ・シンガポール・プライベート・リミテッド Portable computer and housing structure
JP2013233574A (en) * 2012-05-09 2013-11-21 Fts:Kk Device for molding bottomed container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331888A (en) * 1997-11-28 1999-06-02 Nokia Mobile Phones Ltd Fastening arrangement for a radiotelephone housing
US6074779A (en) * 1998-04-20 2000-06-13 Motorola, Inc. Battery cell housing
JP2000176588A (en) * 1998-12-09 2000-06-27 Miyamoto Kogyo Kk Impact extrusion forming device for bottomed container and impact extrusion forming method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698337A (en) * 1969-12-11 1972-10-17 Dale E Summer Can bodies and method and apparatus for manufacture thereof
GB8913209D0 (en) * 1989-06-08 1989-07-26 Metal Box Plc Method and apparatus for forming wall ironed articles
DE4133340C2 (en) * 1991-10-08 1999-05-27 Harry Frank Capacitor cup housing with predetermined bursting area as well as method and tool for its production
US5394727A (en) * 1993-08-18 1995-03-07 Aluminum Company Of America Method of forming a metal container body
US5572893A (en) * 1994-12-01 1996-11-12 Goda; Mark E. Method of necking and impact extruded metal container
US5630337A (en) * 1995-09-07 1997-05-20 Werth; Elmer D. Apparatus and method for forming a container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2331888A (en) * 1997-11-28 1999-06-02 Nokia Mobile Phones Ltd Fastening arrangement for a radiotelephone housing
US6074779A (en) * 1998-04-20 2000-06-13 Motorola, Inc. Battery cell housing
JP2000176588A (en) * 1998-12-09 2000-06-27 Miyamoto Kogyo Kk Impact extrusion forming device for bottomed container and impact extrusion forming method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 09 13 October 2000 (2000-10-13) *

Also Published As

Publication number Publication date
US20020101140A1 (en) 2002-08-01
US6655764B2 (en) 2003-12-02
EP1228819A2 (en) 2002-08-07

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